https://opendata-rspb.opendata.arcgis.com/datasets/6076715cb76d4c388fa38b87db7d9d24This is the complete list of RSPB reserves in total up to around December 2021 possibly into early 2022 and a number of these reserve not mentioned in the list of reserves on the RSPB website and called; RSPB Reserves; Open Data! Not easy to use! But is available for anyone to see!
Regards,
Ian.